中国港湾建设
中國港灣建設
중국항만건설
CHINA HARBOUR ENGINEERING
2015年
1期
47-50
,共4页
郑琳珠%陶润礼%庄海飞%陈功%林挺
鄭琳珠%陶潤禮%莊海飛%陳功%林挺
정림주%도윤례%장해비%진공%림정
绞吸挖泥船%泥泵%数值模拟%模型试验
絞吸挖泥船%泥泵%數值模擬%模型試驗
교흡알니선%니빙%수치모의%모형시험
cutter suction dredger%dredge pump%numerical simulation%model experiment
结合数值模拟和模型试验，基于流体仿真软件，采用标准k-着湍流模型，模拟大型泥泵的三维流场，预测泥泵的水力性能，并采用增大叶片包角，减小叶片出口角、调整叶片型线等方法对叶片进行优化，最高水力效率达到86%；基于相似定律，按照1颐4的比例设计制造模型泵，在试验台上进行外特性试验。结果证明，优化设计的大型泥泵效率与预测相符，验证了高效泥泵的设计方法。
結閤數值模擬和模型試驗，基于流體倣真軟件，採用標準k-著湍流模型，模擬大型泥泵的三維流場，預測泥泵的水力性能，併採用增大葉片包角，減小葉片齣口角、調整葉片型線等方法對葉片進行優化，最高水力效率達到86%；基于相似定律，按照1頤4的比例設計製造模型泵，在試驗檯上進行外特性試驗。結果證明，優化設計的大型泥泵效率與預測相符，驗證瞭高效泥泵的設計方法。
결합수치모의화모형시험，기우류체방진연건，채용표준k-착단류모형，모의대형니빙적삼유류장，예측니빙적수력성능，병채용증대협편포각，감소협편출구각、조정협편형선등방법대협편진행우화，최고수력효솔체도86%；기우상사정률，안조1이4적비례설계제조모형빙，재시험태상진행외특성시험。결과증명，우화설계적대형니빙효솔여예측상부，험증료고효니빙적설계방법。
we predicted the onboard dredge pump's hydraulic performance based on numerical simulation and model experi-ment, and fluid simulation software, used the standard k-εturbulence model to simulate three-dimensional flow field of large submerged dredge pump. The hydraulic efficiency of pump was up to 86%was achieved by increasing blade's wrap angle, re-ducing outlet angle and adjusting the lines in this simulation. Based on similar laws, we manufactured a model pump with the ratio of 1:4, carried the model pump external characteristics test. The results show the efficiency of optimized large dredge pump matches the simulation's prediction and it has verified the design method of the high-efficiency dredge pump.
